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WHO Classification of Tumours
Endometrial stromal sarcoma, low grade
Cervix uteri


Low grade endometrial stromal sarcoma is an infiltrating mesenchymal tumour arising from the uterine corpus, uterine cervix, vagina, and the ovary. It is typically densely cellular and characterized by the presence of oval to spindle-shaped cells that resemble the cells of the endometrial stroma, without evidence of significant atypia and pleomorphism. A rich network of thin-walled small vessels supports the cells.
Cervical low grade endometrial stromal sarcoma is very rare. It may arise from cervical endometriosis. The tumours are usually indolent. They have a propensity for late recurrence

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Tavassoli FA, Devilee P (Eds.)
World Health Organization Classification of Tumours. Pathology and Genetics of Tumours of the Breast and Female Genital Organs.
3rd Edition
IARC Press: Lyon 2003